Question

Which of the following is the inequality for the graph?

2x - y > 0

2x + y < 0

3x - y < 0

3x + y > 0

Answer 1

@CShrix @Directrix

Answer 2

What do you think? First try to solve it without the inequality. Just think of it as a regular line and ignore the shaded region.

Answer 3

@CShrix Would the slope be 4?

Answer 4

That is what I got but that isn't an option @CShrix

Answer 5

No, try again :)

Answer 6

@CShrix Okay I got 2 the time

Answer 7

and the b would be 0 so is the answer the second option?

Answer 8

So close!!
It's -2. If you start at 0, you go DOWN 2 and over to the right 1. The negative indicates that it is going down.

Now for the inequality part. Which side is the shaded region on?

Answer 9

Oh okay! and the left side is shaded

Answer 10

So what does that mean? Is the shaded side less than the line? Or greater than the line?

Answer 11

@CShrix Less than?

Answer 12

Yes!
Therefore, we have the equation y < (less than) -2x.
The equations in our choices, don't have that, but they have 2x + y < 0, which is the same thing :)

Answer 13

@CShrix Thank you so much!!

Answer 14

:)